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WAEC - Physics (2002 - No. 6)
The magnitude of the force required to make an object of mass, m move with speed, v in a circular of radius r is given by the expression
\(\frac{mr}{v}\)
\(\frac{mr^2}{v}\)
\(\frac{mv^2}{r}\)
\(\frac{mv}{r^2}\)
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